An image seemingly showing the former Disney star surrounded by smoke accompanied by the caption “High as [bleep]” was posted by a user called “Mileyxxcyrus” on Instagram on Tuesday.

The snap was picked up by several news outlets, but Cyrus has moved swiftly to distance herself from the controversy.

In a post on Twitter, she writes, “I don’t have an Instagram.”

Cyrus has previously been caught on camera smoking the legal substance salvia, but she subsequently admitted she had made a “bad decision” over the 2010 incident, which came just days after she celebrated her 18th birthday.